* Romanticism was a movement: It wasn't a specific age, but a period in Western art, literature, music, and philosophy that spanned roughly from the late 18th century to the mid-19th century.
* Poetry was a major form: Poetry was a key expression of Romanticism, but so were other art forms like painting, music, and even political thought.
So, it's more accurate to say:
* Romantic poetry: This refers to the poetry written during the Romantic period.
* The Romantic era: This refers to the entire movement, including its impact on poetry and other fields.
Think of it this way:
* Renaissance art: We talk about Renaissance art, not "age of Renaissance art."
* Impressionist music: We discuss Impressionist music, not "age of Impressionist music."
Similarly, we speak of Romantic poetry or The Romantic era to clearly refer to this significant artistic period.